MONITOR AUDIO Platinum 300 Series-IIFloorstanding LoudspeakersusedMONITOR AUDIO Platinum 300 Series-II Floorstanding Loudspeakers (Ebony): Mint DEMO’s; 5 Yr WarrantyMONITOR AUDIO Platinum 300 Series-II Floorstanding Loudspeakers (Ebony): Mint DEMO’s; 5 Yr WarrantyMSRP: $14495.00 USD/PairOn display at a recent regional Electronics Show. In AS NEW Condition.As...14495.00

MONITOR AUDIO Platinum 300 Series-II Floorstanding Loudspeakers (Ebony): Mint DEMO’s; 5 Yr Warranty

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Ships fromBurlington, Ontario, L7L 5J7
Ships toUnited States and Canada
Package dimensions23.0" × 21.0" × 49.0" (165.0 lbs.)
Shipping carrierUPS
Shipping cost$1.00
Original accessoriesBox, Manual
AverageResearch Pricing

MONITOR AUDIO Platinum 300 Series-II  Floorstanding Loudspeakers (Ebony): Mint DEMO’s; 5 Yr Warranty

MSRP: $14495.00 USD/Pair

On display at a recent regional Electronics Show. In AS NEW Condition.

As we cannot advertise discounted pricing on this speaker, we are accepting offers instead. The first lucky audiophile to make us a reasonable offer, will be very happy indeed !

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A further leap in dimension brings still greater rewards in the form of the outstanding PL300 II. Standing at over a metre in height and designed to move the air in larger listening environments, the PL300 II will energise your listening across an enormous sound stage, magically studded with an abundance of natural detail. Its four driver system involving twin 8” RDT®II drivers, 4” TLE loaded midrange and MPD tweeter, captures all the fluid tonal complexity and dynamic richness of each performance on a truly orchestral scale. Explore the depths and climb to the heights of your music and film favourites with an effortlessness that confirms an inescapable truth: the bigger the Platinum, the more precious the prize.

SHIPPING COST: due to size and weight of speakers (165 lbs), please contact us with your location for an exact quote.  We have put in a fee to be able to place the ad, but shipping will be adjusted up, please message us before adding to cart.

  • x 8" RDT®II long throw bass drivers 
  • 4" RDT II mid-range driver 
  • MPD (Micro Pleated Diaphragm) high frequency transducer designed specifically for Platinum II 
  • 2 x HiVe®II ports 
  • New patented 'DCF' (Dynamic Coupling Filter) mechanism for more natural sound 
  • Bespoke speaker terminals and footings 
  • Underhung, edge-wound voice coils: greater driver efficiency and lifelike dynamics, less distortion 
  • Bolt through drivers: clearer sound and cleaner aesthetics 
  • Anti-Resonance Composite (ARC) mid-range housings and baffle components: reduced cabinet vibration, purer sound quality 
  • TLE (Tapered Line Enclosure) sealed internal enclosure for mid-range drivers: greater sound accuracy and reduced cabinet vibration 
  • Hand-upholstered front baffle: the very highest quality Inglestone leather supplied by Andrew Muirhead 
  • Individual driver grilles

Some information from Monitor Audio, for the technologically-inclined:

C-CAM Technology: Ceramic-Coated Aluminium/Magnesium is a material originally developed by the aerospace industry for jet engine components. Its properties are ideal for loudspeaker cones being extremely rigid, yet light enough to yield high overall efficiency. In manufacture, aluminium/magnesium alloy undergoes a three-stage stress-relieving process to remove surface deformation and molecular weakness. Once formed, the alloy cone is subjected to a high temperature anodic coating process in which a layer of pure ceramic alumina is depleted onto its surfaces to a depth of 50 microns, producing a completely rigid sandwich of alloy and heat-dissipating ceramic material.
Conventional cones are liable to flex or twist in operation, producing a significant level of audible distortion. C-CAM cones have a much higher resistance to bending stress and therefore exhibit much greater fidelity over their entire operating range. C-CAM tweeters and woofers share an audible consistency producing a smooth transition of frequencies and a sense of realism and cohesion in the soundstage.

RDT (Rigid Diaphragm Technology): RDT is a unique technology developed specifically by Monitor Audio's engineers for the Platinum series of loudspeakers. Designed to reduce mass and increase cone stiffness, RDT applies ultra-thin skins of C-CAM to a core of honeycomb Nomex® material, creating a structure which is extremely light but incredibly rigid. At only 40 microns thick, the C-CAM skins are half the thickness of a human hair, yet when bonded to the Nomex core they form an RDT cone, which is 150 times more rigid than a single layer of 200 micron C-CAM alloy, but has a fraction of the overall mass. These properties allow the cone to operate as a lightning-fast piston for a clearer more natural sound. The RDT cone's concave geometry has been refined by FEA analysis to provide a smooth frequency response and to eradicate break-up.

HiVe II Port Technology: A new type of port technology which uses a straight rifled design to accelerate air flow and reduce turbulence. HiVe II technology has the ability to move air in and out much quicker than a conventional port, the result is fast powerful bass coupled with superior transient response.

ARC (Anti-Resonance Composite): Having various applications within a number of our speaker ranges, this high-tech Anti-Resonance Composite material is a thermo-set polymer loaded with minerals to provide very inert, optimally-damped components. Refined by Monitor Audio’s engineers initially for the Platinum series, ARC is ideal for acoustic design, where a high degree of structural rigidity and vibration damping is required in order to prevent the propagation of standing waves and modal resonances.

Magnetic Grille-Fixing: Ultra-powerful neodymium magnets hold the speaker grilles in place, allowing for easier installation and access.

Ribbon Transducer: Monitor Audio's proprietary ribbon tweeter design uses an ultra-thin sandwich of C-CAM alloy suspended in a powerful transverse magnetic field of high energy NeFeB rare earth magnets. The ribbon serves as both voice coil and radiating diaphragm, with every part of the ribbon driven directly and simultaneously without energy storage. Having a mass of just 18mg, its diaphragm is able to start and stop in an instant, producing a transient response capable of defining the leading edge and natural harmonic resonance of complex musical sounds. Specified to reach ultra-high frequencies up to an elusive 100 kHz, Platinum’s magical ribbon tweeter will reproduce with ease every last nuance and detail from vinyl, CD, DVD-A and SACD, together with the wider bandwidth of Blu-ray.




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